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(No Model.)

U. HULL su W. W. MOEWAN. PROCESS oP MAKING PAPER PAILS.

No. 445,143. Patented Jan. 20, 1891.

j i ,4' 4" A' Z 44%, www@ @Maa y lJNiTEn STATES PATENT OFFICE.

UZAL HULL AND lVlLLIAM W. MCEWAN, OF BELYIDERE, NEv JERSEY, ASSIGNORS'FO THE NEV YORK VOOD FIBRE COMPANY, OF SAME PLACE.

PROCESS OF MAKING PAPER PAILS.

SPECIFICATION forming part of Letters Patent No. 445,143, dated January20, 1891.

Application filed December l2, 1889. Serial No. 338,435. (No model.)

To @ZZ whom t may concern.-

Be it known that we, IIZAL HULL and \YIL man W. MoEwAN, citizens of theUnited States, and residents of Belvidere, in the county ot' Warren andState of New Jersey, have invented certain new and useful Improvementsin Processes of Making Paper .lailsg and we do declare the following' tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe saine, reference being had to the accompanyin g drawings, and toletters of reference marked thereon, which AForm a part ot thisspecification.

Figures 1 and 2 are vertical central sections ofthe apparatus forcarrying out our process.

rlhis invention has relation to means for facilitating the manufactureof paper pails; and it consists in the novel process hereinafter setforth,

In carrying out this invention apparatus is employed, and in theaccompanying drawings I have illustrated certain devices which may beused.

rlhe letter A designates the base-block or press-head, which usuallyconsists ot' a lower cylindrical portion A', surmounted by thecone-frustuin c, the top c of which has a shallow concave form, and isprovided with channels a, converging to the central opening uf, fromwhich leads the drain pipe or leg A, which may extend to the level ofthe lower surface of thebase-block A. For some pails I may use abasedilock having its upv per portion cylindrical. ljpon the upperportion et' the base-block or press-head is placed the removableholderll, consisting of a sheetmetal covering having` its upper edgeturned inward to form a small flange ZJ, and having its lower or skirtportion b extended below the level of the lower edge of the paper-pailblank, so that it can be readily manipulated in lifting the pail fromthe base-block when iinished. rlhe holderis divided or cleft along oneside, as shown.

Upon the concave top ot the base-block is pla-ced awire-cloth guard andstrainer-piece C, also oit concave form to correspond with the contourof the top d', the wire-cloth serving to provide a surface upon whichthe paper of the inwardly-bent portion of the side wa'll and of thebottom center disk, when used, can be pulped and pressed, also providinga strainerguard to prevent the pulp from passing down into thedraining-charm els of the press-head, while allowing the water to passfreely through into the saine to be conveyed olt through the pipe A".The small inwardly-turned fiangc l) of the sheet-metal holder B engagesthe edge ot the concave wire-cloth guard and holds the latter down toits proper position upon the top of the base-block A.

In carrying out the process a hollow tube orfshell D, of wet paper, ispressed in form and placed upon the removable holder B in such a mannerto have its upper edge extend above the top of the base-block asufficient distance to admit of bending or turning said edge downwardand inward in afolded or plicated manner toward the center of the top ofthe base-block. The extension of the tube is then bent down to form theinwardly plicated iiange, which, however, extends more or less towardthe center from the bend at d, and sometimes leaves a central openingCZ, which is to be fit-ted with the circular center disk, as at E, thecircumscribing edge ot this disk meeting the plicated edge of the iiangeportion of the side wall. The side wall is conined to its properposition upon the removable holder by the bandage F, ot sheet metal,which is provided with an extension F of its upper portieri, saidextension rising above the level et the top ol the base-block A. rlheplicated bottoni portion is then pierced or picked, as hereinafter setforth, to reduce it to a homogeneous pulp and intimately coniiningle andlock the iibers, and finally the pulped and picked portion is pressed togive the bottoni proper density and shape. The circular een ter disk otpaper is wet, as is also the plicated flange of the side wall which isbent over and down to meet it, and in the operation of joining parts bypulping, water is freely supplied within the cylindrical chamber boundedby the extension F. In reducing the plicated iiange of the paper sidewall and the bottom center disk when used to the IOO proper pulp7consistencc a perfor-ating tool or n eedle-instrument (indicated at G)is p refcrabl y employed, this being worked 'by a picking action intoVthe plicated flange and marginal portion of the center disk until thetwo are reduced to a pulpy and homogeneous condition.

Il is a cloth-binder, which is applied over the pulped portions andVheld in a strained and secure manner by the pressure of the conicaljacket F. This binder serves to prevent the pulp from working out orbulging under the action of the follower K in the pressingroperation andassists materially in giving the bottom its proper form.

The follower Kis provided with a convex lower or pressure face 71;',which is usually channeled, as at 7a, for drainage, the channels leadingto the central aperture K of the follower, which is in communicationwith the pipe K of a suction-pump. In this manner it is designed toprovide with additional means for removing the water expressed t rom thepulped parts during the descent of the follower in pressing said pulpedparts to give the proper contour to the bottom of thepail. After thepressure the follower is raised and the bandage F removed. Thecloth-binder H is taken o tfand the paper pail lifted from thebase-block by means ot' the removable holder B, whereof the skirt orextension b below the angle of the base-block affords a purchase or holdfor manipulation. This lioldeig'being cleft, is easily loosened andlifted from the basegblock, and is as readily loosened from and takenout of the finished pail.

Whatwe claim as our invention, and desire to secure by Letters Patent,is i 1. 'lhe process of making paper pails, consisting in, first,forming a wet-paper tube; second, bending inward the end portion of saidwet-paper tube, thereby providing; a plicated fiange portion around thebottom center; third, picking said plicated flange portion, therebyreducing it to a homogeneous pulp the fibers of which are intimatelycommingled and locked together, and finally pressing the pulped andpicked portion to expel the water and give the proper density and shapeto the bottom thus provided, substantially as specified.

2. rl`he process of making paper pails, consisting in, first, forming awet-paper tube; second, bending in the end portion of the same, therebyproviding a plicated flange surrounding a central opening and applyingwithin said central opening a bottom center disk of wet paper; third,picking said plif cated flange and bottom center disk, thereby reducingthem to a homogeneous pulp the fibers of which are intimately commingledand locked together, and finally pressing the p ulpcd portions to expelthe water and give the proper density and shape to the bottom thusprovided, substantially as specilied.

In testimony whereot` we affix our signa tures in presence of twowitnesses.

UZAL HULL. V i VILLIAM W. MCEVVAN. Titnesseguv i PHILIP C. MAsI, MARY.BOYKIN.

